Counter



L. E. LA BOMBAHD AND M. H. SIDEBOTHAM.

COUNTER.

APPLICATION FILED FEB. e, 1920.

1 ,409, 1 8'7, Patented Mar. 14, 1922.

2 SHEETS-SHEET h L. E. LA BOMBARD AND M. H. SIDEBOTHAM.

COUNTER.

APPLICATION FILED FEB. s. 1920.

Patented Mar. 14, 1922.

- 2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

LEON E. LA IBOMBARD, OF CHELSEA, AND MELVIN H. SIDEBO'IHAM, OFCLIFTONDALE, MASSACHUSETTS, ASSIGNOB-S TO SPECIALTY AUTOMATIC MACHINECOMPANY, OF CHELSEA, IVIASSACHUSETTS. A CORPQRATION F MASSACHUSETTS.

COUNTER.

Specification of Letters Patent. Patented l'ilflil. 1-1, 1922.

Application filed February 6, 1920. Serial No. 356,700.

To all whom it may concern."

Be it known that we, linen E. LA Borrninu), of Chelsea, in the county ofSuffolk and State of Massachusetts, and Mrmvin H. Smnnorrmrr,of'Cliftondale, in the count) of Essex and State of lv lassarhusetts,both of whom are citizensof the United States, have invented certain newand useful Improvements inCou'nters, of which the following is aspecification.

L This invention relates to mechanical counters and has part-icularreference to that type of devices which are attached to machines formaking articles such as flat paper boxes or cartons and effect countingof such articles by indicating to an attendant that a predeterminednumber (such as fifty) are ready to be picked for boxing or laying asidein piles or groups. Usually the articles issue from the making machineeither to mechanism which assembles them in a vertical pile, or onto abeltwvliiirli moves so slowly that the articles rest thereon in inclinedoverlapping condition, such belt forming a travelling platform fromwhich the attendant removes the articles in. groups for packing. Themachine produces the articles too rapidly foranyone to count themindividually and therefore several devices have been proposed to sochance the position of some of the articles arri mg in the pile or row,relatively to the intervening ones, as to indicate to the attendantwhere to effect a separation of the pile or row in order to remove apredetermined number, such as .lifty. if the device changes thepc-sitionof more than. one article at each displacing operation, theattendant can not determine accurately where to effect the separation,and is liable to pick up 51 or 55 or 49 or 48 articles. The smaller thearticles, the iireater is the liability of displacing" two or morearticles instead of one.

The principal object of the present invention is to provide mechanism ofthe character described which. even when the smallest sizes of flatfolded boxes are to be counted will. when operating to desigrate thelast of a group. act upon but one box.

With this object in view the invention consists in a counter having amovable mem her which is moved by every passing article and which itselfacts to displace some of them at intervals, and means connected withsaid member to determine the periods when that member shall act. In theembodiment of the invention illustrated, the displacing means comprisesa pair of rolls between which the articles pass, said rolls beingshifted aside to displace one article passing Jetvveen them at a timewhich is determined by the number of preceding articles which passedbetween said rolls. 7

Other objects and advantages will be fully explained hereinafter, andfurther features of the invention will be pointed out in the appendedclaims.

Of the accompanying drawings l igure l is a perspective view of theinvention in one of its embodiments, the laterally movable rolls betweenwhich the articles pass being shown in their normal positions.

Figure 2 is a perspective *iew taken from a different point, the rollsbeing in their laterally shifted positions. In each of Figures 1 and 2.a portion of a disk 4-9 is broken out.

Figure 3 is a perspective view from below, corresponding with Figure 2as to the positions of the parts.

Figure 4.- is a view similar to a portion of Figure 3 but correspondingwith Figure 1 as to the positions of the parts. 7'

Figures 5 and 6 are similar transverse sectional views correspondingrespectively with Figures 2 and 1 as to the positions of the parts.

Figure 7 represents a section through the ratchet coimtina portion ofthe mechanism, on a larger scale than the other figures.

Figure 8 is a. detail side elevation of a modification hereinafterdescribed.

Figure 9 is a view looking in the direction of arrow 9 adjacent Figure8.

In the embodiment of the invention as illustrated the mechanism iscarried by a ramc consisting of a casting: comprising horizontal portionor base 12. an upright The portions l3. have threaded aperr s to receivescrews or bolts by means of which ihe counter is secured to suitableparts Job 13. and depending lugs or ears 1%. 15,

of a machine such as a box folding machine not necessary to illustrate.The articles to be counted, such as flat-folded boxes orcartons that arebeing made by such folding machine, are fed through a throat orpassageway 17 (Figs. 3 and 6) formed as a recess in the horizontalportion 12 of the casting, one end 18 being flared. Said articles arefed through said throat in rapid succession by suitable means such asthe usual belts (not shown) employed for delivering boxes from thefolding devices. One shaft of such a machine is indicated at 19 in Fiure 1 because, as hereinafter explained, a driving shaft of some kind isemployed to operate certain parts of the present counter. Said shaft 19might be any constantly running shaft, not necessarily a part of themachine to which the counter is attached. For present purposes it willbe sufficient to explain that the articles to be counted are passedthrough the throat 17 by any suitable if means and that certain parts ofthe counter to be described are actuated by suitable means such as ashaft 19.

The so-called counting is effected by laterally displacing articles fromthe row at certain regular intervals. In such machines as those forwhich the present counter is designed as an attachment, it is customaryto embody a slow-travelling belt onto which the articles are deliveredby the folding machine in the form of a row of overlapping folded boxesor cartons. By laterally displacing certain articles, such as everyfiftieth one, the attendant is able to grasp a group (such as fifty ofthem). and place them in 2 boxes or other receptacles without having todo any personal counting excepting of the number of groups. This type ofcounter is particularly useful in connection with ma chines which foldboxes at the rate of 50,000 or more an hour, too fast for any other thangroup-counting to be effected.

The mechanism for effecting periodic lateral displacement of the passingarticles, at fixed intervals, will now be described. Said articles, asthey leave the throat 17, pass between upper and lower rolls 20, 21,respectively, the lower one being preferably knurled. The lower roll 21is carried by a shaft 22 having a pulley 23 which is continuouslyrotated by a belt 24- driven by a pulley 25 carried by shaft 19. Theshaft 22 is mounted in a bearing 26 rigidly connected to one end of anarm 27 (Fig. 3) below the portion 12 of the frame casting and pivotallysupported at its other end by means of trunnions 28 one of which issupported by the frame lug 15. The upper roll 20 is idly mounted on apin (Fig. 1) carried by a short arm 29 of a rock shaft 30 mounted in abearing 31 connected by a web 32 with the bearing 26 so that when thearm 27 swings laterally it carries both of the rolls 20, 21, with it asindicated by comparing Figs. 3 and 4. Fig. 4 represents the normalposition of the arm 27, hearing bracket 32 and rolls 20, 21, whenarticles are being run through the throat with no displacement, and Fig.3 represents the positions of said parts at the instant when the passageof an article (such as the fiftieth one) releases the mechanism which isyet to be described and which causes the momentary lateral movement ofsaid parts to effect displacement of that article out of alinement withthe other articles in the row.

To cause these swinging parts to shift quickly to the Figure 3 positionwhen released, a spring is connected at one end to the pivoted arm 27and at the other end to a block 84 adjustably secured to a fixed rod orarm 35 projecting from the base part 12 of the frame casting. And tolimit the position to which the parts can be swung by the spring, a rod36 is fixed in block 34 so that its inner end may serve as a stop forthe arm 27.

For purposes of description, it will be assumed that the counter isconstructed to deflect each fiftieth article passing between rolls 20,21. During the passage of fortynine the parts are locked in the positionshown in Figures 1 and 4 by a lever 37 mounted on a horizontal pivot 38.The long end of said lever has an upturned tooth 39 (Fig. 1.) to engagea notch in a countercontrolled disk hereinafter described, and the shortend has a lateral tooth 40 overlapping the tooth of a latch 41 pivotedat 42 (Fig. 2)to the side of swinging arm 27 and normall held against astop 43 by a spring 44. he rear faces of the cooperating teeth of themembers 37, 41, are bevelled to permit them to readily pass from theunlocked position of Figure 2 to the locked position of Figure 1, latch41 automatically yielding when so passing.

The relative positions of the rolls 20, 21 are such that theirperipheries are almost, if not quite, in contact, so that every passinarticle will lift the roll 20, and act throng arm 29 to rock the shaft30. Rigidly connected to said shaft is an arm which actuates' a ratchetto effect the release of lever 37 when the fiftieth article is passing.Said arm comprises a comparatively rigid member 45 to which is securedan overlying stri 46 of spring metal. A spring 47 connected at one endto the end of swinging arm 27 and at the other end to the projecting endof strip 46 has a tendency to hold the rock shaft with the roll 20lowered, and to hold the other end or tip of the strip up. Said tipactuates the pawl and ratchet mechanism presently described, to effectrelease of lever 37.

One object of the strip 46 is to make the counter actuating arm as awhole resilient so that if anything unduly thick is passing between therolls 20, 21, no damage to the passing article or any parts of thecounter will result. This feature is effective in box folding machinesof a type which, owing to high speed or other causes, sometimes sendthrough a plurality of accidentally interfolded boxes. Another object ofthis resilient feature will be explained hereinafter.

The ratchet mechanism that is operated by the arm 45, 46 is contained ina housing secured to one side of the member 13 of the frame casting,said housing comprising inner and outer disks 48, 49 (Figs 1, 2 and 7)connected by a plurality of spacing pins. dounted in said disks is ashaft 50 having fixed thereto a ratchet 51 of (in this instance) fiftyteeth, and also a disk 52 having a notch 53. The upturned tooth 39 oflever 37 coacts with the disk 52 and its notch as presently described.

Mounted on shaft 50 is an oscillating member or rocker 54 having at oneend a recess or mouth 55 which receives the tip of the actuator oroscillator 46 and having at its other end a pawl 56 the ratchet 51. Ashouldered stop 5'? accurately prescribes or limitsthe movement of pawl56, and a detent 58 prevents back motion of the ratchet.

The fixed disk-.8 has a recess 59 into Which one side of the tip of theactuator strip 16 enters, so that the upper and lower sides of saidrecess limit the extent to which said tip can vibrate. This mechanismpositively prevents any actuation of the pawlcarrying rocker 54 beyondwhat is necessary to advance the ratchet the space of one tooth. Forinstance, if a plurality of interfolded boxes should pass between therolls 20, 21, the roll 20 can yield sufficiently to let them passwithout damage because of the yielding arm 45, 46, but the effect willbe to only count the passage of one box because of the recess 59limiting the vibration of the tip of said arm. V7 hen this occurs theattendant who is picking up the groups readily notices the interfoldedboxes and removes them and in place thereof inserts in that group offifty one good box so as not to interfere with boxing or pacl-:- agingthe correct number.

To prevent excessive movement or overthrow of theratchet and its shaftand the notched disk 52. due to momentum a brake head or pad 60 carriedby a spri plunger mounted in the outer disk d9 of the housing bearsagainst the side of the disk 52 (Fig. 2).

During the rotation of the ratchet the periphery of disk 52- presents asurface against which the tooth 39 of lever 3? bears until the notch 53in said disk arrives above said tooth and permits said lever tooscillate on its pivot. The structure is such that while the lever is inlocking position there is a constant tendency of its long arm to rise.This is effected by so bevelling the coasting faces of the latch l1 andtooth 40 of the lever that the pull of spring 33, transmitted to thelatch which is carried by swinging arm 27, tends to make the side faceof latch a1 act a cam on the side face of tooth 0 to depress the shortarm of the locking lever and raise its long arm. Therefore, when notch53 of counter disk 52 arrives in position to permit it, lever 37 yieldsand arm 2? and all parts carried by it, including the rolls 20, 21,shift suddenly to the position indicated in Figure 3. The box which atthe moment is between said rolls is shifted out of alinement with thepreceding ones, this shifting being in adirection toward the left inFigure 6 and therefore away from the vertical Web which connects theupper and lower horizontal portions of the chute or throat 17. The nextfollowing boxes are not directed out of alinement because the rolls,which have not moved far aside (say or 1% inch) are still in position toreceive between them the boxes which are fed along the throat 17. Assoon as the latch 41 has passed aside it can no longer exert any camaction on lever 3'7 and therefore the weight of the longer arm of saidlever causes its tooth 39 to retreat instantly from notch 53, thereforeleaving the disk 52 and ratchet 5i free to be actuated to effect thecounting of the next series of fifty boxes.

To return the swingingarm 27 and rolls 20, 21 to the positions shown inFigures 1 and at before enough boxes have passed to effect the nextcomplete rotation of ratchet 51 and disk 52, the following mechanism isprovided.

Mounted in bearings provided in the frame lugs 14, 16, is a shaft 62,best illustr ted in Figs 5 and 6. Secured to the shaft intermediate itsends is a side-faced cam 63 the high and low ends of which are joined bya steeply inclined portion 64:. The swinging arm 2? has an opening largeenough to surround the cam without touching it and said arm carries afinger 65 (Fig. 3) so that when the shaft 62 is rotated as presentlydescribed the cam 63 acts on the 65 to shift the arm 2. from theposition shown in Figures a, 3 and 5 tothe posi tion shown in Figures 1,+2 and 6.

Secured to shaft 62 is a ratchet 66 having one flat tooth with a smallnotch or recess 6? formed in it (Figs. 1 and 2). Mounted to oscillate onthe outer end of shaft 62 is a two-armed rocker, one arm 68 of whichcarries a pawl 69 held in yielding engagement with the ratchet 66 by asuitable spri 79. A suitable detent '71 is provided for the ratchet. Theother arm 72 of the rocker has a pin '73 on which is mounted a sleeve 74 connected by a link 75 with an eccentric strap 7 6 mounted on aneccentric 77 se cured to the shaft 19 of the machine to which thecounter is attached.

As the shaft 19, in practice, rotates rapidly, it actuates the rockerwith sufficient speed to intermittently rotate the ratchet 66, and theshaft 62 in ample time to cause the cam 68 to return the swinging arm 27to normal position long before fifty boxes have passed between the rolls20, 21.

The shaft 62 also has secured to it an arm 78 having a pin 79 projectinglaterally from it to serve as a stop to prevent the cam 63 from rotatingtoo far. It serves to arrest the shaft and cam at the point indicated inFigure 6 by contacting with the finger 65.

Secured to one end of shaft- 62 is an arm 80, a spring 81 (Fig. beingconnected to said arm and to the base member 12. The purpose of thesefeatures will be presently explained.

In operation the front end of each article passing through the throat 17and entering between rolls 20, 21, effects sufficient lifting of theroll 20 and consequent rocking of shaft 30 to cause the arm 4L5, f6, ofthe latter to oscillate the rocker 54 and actuate the ratchet 51 thedistance of one tooth. When said ratchet and its shaft and the disk 52have rotated to a point Where the notch 53 of said disk arrives oppositethe tooth 39 of lever 37 said lever is released and the tooth 40 at theother end thereof releases the latch 41 and the spring 33 instantlypulls the pivoted arm 27 aside from the position indicated in Figures 1,4 and 6 to the position indicated in Figures 2, 3 and 5, the limit ofsuch movement being determined by the end of stop rod 36. The bracket 32and the shafts therein and the rolls 20, 21, being carried bythe arm 27,such lateral movement of said arm causes the article then between saidrolls to be dis placed from the line of the articles which preceded it.Since it is the front edge or end of each article that effects liftingof roll 20 and consequent actuation of the mechanism just described, thesame article which brings the notch 53 to position to effect release ofarm 27 will be the one to be laterally displaced, because the springacts to swing said arm with its rolls 20, 21, before that same articlecan pass entirely between said rolls. Preferably the ratchet 51 hasfifty teeth and therefore each fiftieth article will be displaced.

The arm 27 and the rolls 20, 21. do not at once return to normalposition but this does not cause any lateral displacement of thearticles following the single one which. has been displaced. This isbecause the articles continue to be fed along through the throat 17 andthe rolls 20, 21, do not shift so-far aside as to materially divert thesucceeding' articles. The rolls engage portions of the articles nearerthe edge thereof, but each article lifts roll 20 just the same while therolls are shifted (Fi 3), as when they are in normal position ig. 4).

As soon as the arm 27 and the rolls 20, 21 have been shifted, themechanism for 1e turning them to normal position begins to operate.Before describing this operation it is desirable to explain that whensaid arm 27 is in normal position the finger 65 carried by it is inposition to hold the shaft stationary (see Fig. 6) because it serves asa stop for pin 79 carried by said shaft. Although the pawl 69 iscontinuously aetuated by the eccentric 77, through its connectionstherewith, the shaft 62 is not rotated because at this time enough ofthe surface of the flat-topped tooth of the ratchet 66 is undersaid mudto prevent actuation of the ratchet. hen, when the arm 27 shifts todisplace an article as already described, the finger 65 rides over theinclined edge portion 64 of cam 63 and there by gives a slight impulseof rotation to the cam as shown by comparing Figures 6 and 5. As saidcam and the ratchet 66 are both fixed to the shaft 62, the action justde' scribed moves the ratchet far enough so that the actuating pawl 69will either engage the tooth next beyond the fiat-topped tooth or acorner of the pawl will engage the notch 67 in that tooth, in eitherevent effecting actuation of the ratchet and its shaft and the cam 63,which actuation will continue until 100 the flat-faced tooth is againunder pawl 69 and the parts are again in the position shown in Figure 6where finger 65 arrests the shaft and cam. As the cam rotates toward thelast mentioned position, its side 105 face acts on the side of finger 65and so swings the arm 27 and its finger 65 to the position justmentioned. And of course the rolls 20, 21, return to normal position.

The return of arm 27 and the rolls to nor- 1 mal position is effectedlong before enough articles (such as fifty) have passed between therolls so as to cause another displacing action. This is due to the factthat the ratchet 66 has so few teeth that the rapidly- 11 acting pawl 69completely rotates said ratchet in a fraction of the time required forfifty passing articles to effect complete rotation of the countingratchet 51. As will now be understood, the mechanism comprises oneratchet the movement of which is due to the passage of articles and therotation of which results in the displacement of individual articles atpredetermined intervals, and means including another ratchet (66) whicheffects the return of its displacing means to normal position. We do notlimit ourselves to the specific ratchet counting mechanism including thearm 45, 46, and rocker 54 hereinbefore described. For instance, Figures8 and 9 illustrate rolls 85, 86 for the passage of articles betweenthem, each of said rolls being peripherally grooved. The upper roll 85is mounted in an arm 87 which is mounted to be swung or shifted aside inthe manner of the arm 27 of the other figures. Said arm has a'bearing 88for a short stud shaft 89 having an arm 90 carrying the lower roll. 86.A pin 91 projecting from the stud shaft has a spring 92 connected toitto serve to yieldingly raise the roll 86 into contact with roll 85.

A ratchet 93 is mounted in the a m 87 and by any suitable means, such asa spring, not necessary to illustrate, has imparted thereto a tendencyto rotate in the direction of the arrow, Fig. 8, which tendency isresisted, but intermittently permitted, by the escapement arms 94, 95,having teeth alternately engaging the ratchet. Said arms are integralwith or rigidly connected to an arm 96, all three arms being pivotallyconnected at 97 to the arm 87. The arm 96 extends through the peripheralgroove or roll 85 and into that of roll 86 so as to lie in the path ofthe articles being fed between the rolls whereby each passing articleacts upon arm 96 to slightly actuate the escapement arms 94, 95, tointermittently permit rotation of ratchet 93. A machine embodying thestructure illustrated in said Figures 8 and 9 may, in all otherrespects. be substantially the same as in the other Figures; that is,the ratchet 93 may act through the same mechanism as that shown inFigures 1 to effect lateral movement of the arm 87 and the rolls 85, 86,and said arm may be returned to normal position by the same means ashereinbefore described in connection with Figures 1 to 6 inclusive.

Having now described our invention, we claim:

1. A device of the character described, comprising a member mounted tobe moved by each of a series of passing articles, means for actuatingsaid member to cause it to displace some of the articles at intervals.and means connected with said member to determine the periods when saidmember shall act.

2. A device of the character described comprising a pair of members,means for directing articles successively between said members, meansfor shifting said members aside periodically at predetermined times todisplace articles at spaced points, and means controlled by the passageof the articles to effect said shifting.

3. A device of the character described comprising a member mounted to bemoved by each of a series of passing articles, means for actuating saidmember to cause it to displace some or" the articles at intervals, and

means connected with said member to determine the periods when saidmember shall act, said means including devices for determining thedisplacing operation of the members according to the number of precedingarticles which passed said members.

l. A device of the character described comprising a pair of rolls forengaging opposite surfaces of passing articles, said rolls beingrelatively movable to be parted by each passing article. means formoving said rolls laterally periodically to displace individualarticles, and means controlled by the parting movement oi the rolls toeffect their lateral movement.

A counter mechanism of the character described, comprising means forengaging passing articles, means for holding said engaging means inposition to permit a predetermined number of the articles to pass in thesame direction, and means controlled by the passage of an articlefollowing said predetermined number for laterally shifting said engagingmeans to divert said following article out of the path of those whichpreceded it.

6. A counter mechanism of the character described, comprising a pair ofrolls for engaging articles passing between them, means for holding saidrolls against lateral movement during the passage of a predeterminednumber of articles, and means controlled by the passage of an articlefollowing said predetermined number tor laterally shifting said rolls todisplace said controlling article relatively to those which preceded it.

7. A device of the character described, comprising a ratchet, means foreffecting operation of said ratchet by the passage of a succession ofarticles, means controlled by said ratchet for effecting displacement ofsome of the articles at regular intervals, and means including anotherratchet for effecting the return of the displacing means to normalposition.

8. A counter mechanism of the character described having, incombination, a pair of laterally movable rolls for the passage ofarticles between them, and means controlled by the passage of apredetermined plurality of articles to effect lateral movement of saidrolls.

9. A device of the character described, comprising a member mounted tobe moved by the front portion of each of a series of passing articles,and means controlled by the number of times that said member is movedfor effecting an article-displacing movement of that member in anotherdirection.

10. A counter mechanism of the character described, comprising a pair ofrolls for engaging articles passing between them, means for holding saidrolls against lateral movement during the passage of a predoterminednumber oi? articles, means controlled by the passage of an articlefollowingsaid predetermined number for laterally shitting said rolls,means for returning said rolls to normal position, a shaft havingconnections for rotating one of the rolls, and means actuated by saidshaft for operating said roll-returning means.

11. A counter mechanism of the character described having, incombination, a laterally movable arm, rolls carried by said arm, aratchet mechanism operated by the passage of articles between the rolls,and means controlled by said ratchet for effecting lateral movement ofthe arm and its rolls.

12. it counter mechanism of the character described having, incombination, a laterally movable arm, rolls carried by said arm, aratchet mechanism operated by the passage of articles between the rolls,means controlled by said ratchet for effecting lateral movement of thearm and its rolls, and means for automatically returning the arm and itsrolls to normal position.

13. A counter mechanism of the character described having, incombination. a laterally movable arm having a pair of bearings, a shaftin one of said bearings having a roll and a pulley, a rock shaft in theother bearing having an arm carrying a roll to cooperate with the firstmentioned roll. a ratchet, means for actuating said ratchet from therock shaft, and means controlled by said ratchet for effecting lateralmovement of the arm and rolls.

14. A counter mechanism of the character described having, incombination, a laterally movable arm having a pair of bearings, a shaftin one of said bearings having a roll and a pulley, a rock shaft in theother bearing. having an arm carrying a roll to cooperate with the firstmentioned roll, a ratchet, a resilient actuator for the ratchet carriedby said rock shaft, and means controlled by said ratchet for effectinglateral movement of the arm and rolls.

15. In a counter mechanism, a, member mounted to be moved by each of aseries of passing articles, a ratchet, a carrier having a pawl engagingthe ratchet, an actuator for said pawl carrier connected with saidmovable member, and means for restricting the extent of movement of saidpawl carrier to prevent excessive actuation of the ratchet.

16. A counter mechanism of the character described having, incombination. a laterally movable arm, rolls carried by said arm, aratchet mechanism operated by the passage of articles between the rolls,a notched disk connected to rotate with the ratchet, a spring forshifting said arm and rolls aside, and latch mechanism for holding saidarm in normal position, said latch mechanism being constructed andarranged to be released by the notch in said disk.

17. A counter mechanism of the character described having, incombination. a laterally movable arm, rolls carried by said arm, aratchet mecln-niism operated by the passage of articles between therolls, means controlled by said ratchet for effecting lateral movementof the arm and its rolls, and means including a cam for returning saidarm and rolls to normal position.

18. A counter mechanism of the character described having, incombination, a laterally movable arm. rolls carried by said arm, aratchet mechanism operated by the passage of articles between the rolls,means controlled by said ratchet for effecting lateral movementof thearm and its rolls, a shaft having a cam for returning said arm and rollsto normal position, and power mechanism for actuating said shaft.

In testimony whereof we have aflixed our signatures.

LEON E. LA BOMBARD. MELVIN H. SIDEBOTHAM.

